Vehicle Smart Key Technology

Smart keys for vehicles allow drivers to unlock and start the car by pressing the door handle or placing the key in the pocket. It also allows various other adjustments including seat position and internal temperature settings as well as mirror position.

However, it could also result in security issues.

Security

Smart keys are key fobs that are computerized and communicate with a vehicle via one of the antennas that are embedded in the vehicle to open the doors and to start the engine. Contrary to conventional keys, which emit the same frequency signal each time they are used, smart keys transmit encrypted signals that are only compatible with the car they belong to. This makes it harder for tech-savvy thieves to spoof or intercept the signal and use the key to take your car.

Mercedes' Keyless Go system, for example, has an internal transponder which identifies the driver's keys. When the Smart Key comes within 1.5 meters of a car, it automatically unlocks the door and tailgate and starts the engine when the key's button is activated.

Furthermore certain smart keyssuch as those from BMW include individual user settings that allow the driver to adjust seat, mirrors and the steering wheel's position as well as audio preferences at the push of one button. They also have the backup lock, which prevents the vehicle from starting if the key is not in the ignition.

This technology stops drivers from getting their car locked accidentally and causing damage to their vehicle, particularly when searching backpacks or purses for keys in the parking lot of strangers, or on a street where crime is high. Many systems also notify drivers when their keys are running low on battery, but this feature is dependent on the manufacturer.

Convenience

The smart key is perfect for those who are in a hurry to get somewhere. You can unlock, lock and start your car by pressing the door handle or trunk release. Popular Mechanics explains that the key fob can also be used to track charging locations, charging, and other information about your vehicle.

A big benefit is that you don't get locked out. The key fob communicates with an antenna inside the vehicle to determine if it's in range. If it's not, the engine will not start. This can deter thieves who may steal your vehicle in order to sell its parts.

The smart key also uses rolling codes to prevent hacking attempts as well as cloning, according BMW. The computer inside the vehicle detects and validates the code prior to launching the motor. Most systems have a mechanical backup system in the form of a hidden key blade.

how to unlock a smart car without a key Stuff Works Electronics notes that modern smart keys (telegra.ph) can also detect the key used and adjust the car settings according to the situation. For example, if you start the car while holding the key fob in the palm of your hand the windows and sunroof can be opened to let the cabin air dry. You can also set up the speed limit to only be applied when the car is powered by the selected key. This feature is beneficial if you're lending your vehicle to a person who has little experience.

Battery Life

If you're looking for a way to get more mileage out of your vehicle's smart key, or just want to make sure it won't die during a trip to the grocery store, you can activate an auto manufacturer-specific feature called Power Saving Mode. To do this, hold down the lock button and press the unlock button.

This will prevent your smart key fob to send or receive any radio waves. This will significantly extend the battery's life. You can always reactivate the function by pressing the lock and unlock buttons again.

Certain smart keys also have anti-theft features that prevent them from being copied by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorized vehicle access. The car's computer will check the code every millisecond after the smart key is inserted. BMW makes use of a Display Key that has a tiny LCD screen with a color. This lets drivers lock their vehicles, unlock their doors, and start them without taking the smart key from their pockets.

Contact Pop-A-Lock if your need to replace the battery in your smart fortwo key fob key fob or considering buying a car with a smart-key. Our mobile locksmiths will replace the battery of any smart key, and will help to set it so that your car can recognize it.

Special Cases

Smart keys aren't 100 100% theft-proof, but they assist in preventing thieves. Smart key for smart car fobs use rolling security codes to avoid hacking, and when placed in the ignition, the car's computer checks the code in milliseconds. This technology was developed by Mercedes-Benz and is now utilized by a variety of premium car brands.

Another great feature is that most smart forfour key replacement key systems will continue to function even if a user forgot the key in the trunk, left it at an eatery or lost it during a hike. Certain systems will also inform the driver when the battery is depleted. Certain brands have key covers designed specifically for smart keys to guard the fob from damage.